TCP/IP服务器读写操作，与客户端TCP/IP代码进行数据读取。-TCP/IP server read and write operations, and client TCP/IP code for data read.

TCP/IP客户端读写操作，与TCP/IP服务器端代码进行数据读写。-TCP/IP client read and write operations, and TCP/IP server-side code for data read and write